COCKERELL: NorTH AMERICAN SPECIES OF HymMENoxys 499 
three quarters length of disc-corolla, long-pointed, sometimes bifid - 
tipped. (PLATE 21, FIGURE 2.) 
A remarkable species, represented only by some much broken 
material in the herbarium of Dr. E. L. Greene, marked Southern 
California, communicated by Wickson. The heads, and even the 
bracts, suggest Macdougalia, but the broad punctate leaves are 
quite different from that, or from any other Hymenoxys. 
v Hymenoxys texana (Coulter & Rose) 
Actinella (Hymenoxis) texana Coulter and Rose, Bot. Gaz. 16: 
27. 1891.— Coulter, Botany of Western Texas, 231. 1892. 
Picradenia texana Greene, Pittonia, 3: 273. 1808. 
The original description is as follows : ‘‘ A small slender annual 
5 to 15 cm. high, branching at base; leaves mostly radical, 3- 
nerved, oblong and tapering at base, entire or few-toothed ; those 
of the stem narrower and toothed, becoming linear and entire 
above: heads small (4 to 6 mm. high): involucral bracts in two 
series ; the outer ones about 8, rigid and keeled, united at base: 
rays minute, not projecting beyond the bracts; achenes pyramidal, 
I mm. long: pappus of 5 oval paleae with aristate acuminations 
very conspicuous in mature heads. Collected by F. W. Thurow, 
near Hockley, Texas, 1889 and 1890; also mounted ona sheet 
with 4. odorata (No. 742) of Palmer's 1879-80 collection from 
S. W. Texas.”’ 
The type sheet collected by Zhurow (U. S. N. M. 27467) is 
before me. The plant probably appears in the early spring, along 
with other small annuals. Its general aspect is much like that of 
Syntrichopappus Lemmoni (Gray) Gray, from the Mojave Desert, 
at least as seen in the herbarium; from its better-developed rays, 
the Syntrichopappus must appear more different when alive. The 
stem-leaves are very small, and vary from linear to broad, obtuse, 
with short lateral lobes. These broad leaves are very character- 
istic, and are totally different from the divided leaves, with wire- 
like divisions, of HW. odorata. The inner bracts are essentially as 
in the odorata-type. The pappus-scales, and the hair on the 
achenes, are white. The receptacle is excessively high-conical, so 
as to be very narrow and almost cylindrical, the pits large and deep. 
In A. odorata the receptacle is conical, but very much broader. 
